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In smeltingof iron, which of the following reactions takes place in Blast furnace at 400^(@)C-600^(@)C

In smelting of iron, which of thefollowing reactions takes place in blast furnace at 400^(@)C-600^(@) C ?

In smelting process the impurities of an ore is removed by

In smelting of iron, reactions takes place in Blast furnace at 400^(@)C-600^(@)C is

In Slapter's rule, the correct arrangments of electron are according to the extent of their screening

In simple ionic crystals_____or______types of arrangement are generally -present.

In SiF_(6)^(2-) and SiCl_(6)^(2-) which one is known and why

In silver extraction process Zn displaces Ag from its

In silicon dioxide:

In Siemen's ozoniser, 60% O_(2) is covered to ozone. How many moles of ozone will be obtained from 10 mole of O_(2)?

In sickle cell anaemia, the basis of malfunction of haemoglobin molecules is

In SHE, platinum act as

In shaving soaps rapid drying is prevented by adding

In SF_(6) molecule, is formed in n^(th) excited state of 's'. What is n ?

In SF_4, S atom is ........... hybridized.

In several experiments on the kinetics of reaction A+B to Products, it is observed that i) On doubling the initial concentration of A, the rate was increased by four times and ii) On doubling the initial concentration of B, the rate was increased by two times.The correct statementis

In Serpeck's process, byproduct obtained in the purification of bauxite is

In separate 0.1 M aqueous solution of each of the following salts, which one will record the highest pH value?

In serpek's process, by product obtained in the purification of bauxite is:

In SeF_6 selenium is:

In second group, H_2 S is passed in the presence of dil. HCl because

In second period of the periodic table, ionisation energy follows the order:

In SCN ligand if N is attached to central atom, the name of ligand is:

In SCl_(2) the central atom involves

In sample of excited hydrogen atoms, electron make transition from n = 2 to n = 1. Emitted quanta strike on a metal of work functio [phi]4.2 ev. Calculate the wavelength (in Å) associated with ejected electrons having maximum kinetic energy.

In salts of polyatomic anion, as polarising power of cation increase, thermal stability of the salt decrease and decomposed species may further undergo redox reaction Q. Which of the followinng species undergoes non-redox thermal decomposition reaction on heating?

In S_(8)each sulphur atom is :-

In s salt bridge, KCl is used because

In Rosenmunds reduction, the action of BaSO_4is.......

In Rosenmund's reduction reaction .................... is the catalyst and ............. is the catalytic poison.

In Rosenmund reduction, which of the following does not poison the catalyst Pd?

In rosenmund reduction, benzoyl chloride in boiling xylene is reduced to benzaldehyde in presence of______.

In roasting :

In Rosenmund reaction, presence of BaSO_(4) acts as ………….for Pd.

In RNA, the sugar is ..............but in DNA, it is ...............

In RN A number of nucleotides are joined together by

In respect of the equation k = Ae^(-E_(a)//RT) in chemical kinetics , which one of the following statement is correct

In Reimer-Tiemann reaction, the medium of reaction is

In Reimer-Tiemann formylation reaction, molecular weight of phenol increases by

In reference to Freundlich adsorption isotherm, write the expression for adsorption of gases on solids in the from of an equation.

In reference to Freundlich adsorption isotherm, write the expression for adsorption of gases on solids in the form of an equation.

In reactin (1), XeF_(6) hydrolysis to form HF and X. In reaction (2), XeF_(6) on partial hydrolysis from HF, Y and Z. The product X,Y,Z respectively, are

In a redox reaction, H_2 O_2 oxidizes K_4 [Fe (CN)_6] into Fe^(3+), CO_(3)^(2-) and NO_(3)^(-) ions in acidic medium, then how many moles of H_2 O_2 will react with 1 mole of K_4 [Fe (CN)_6]

In simple ionic crystals_or__types of arrangement are generally -present.